Michaux's Sumac (3 of 3) (IMAGE) Smithsonian Caption Michaux's sumac is one of the rarest shrubs in the southeastern United States. The critically endangered plant is not cooperating with scientists who are trying to save it. Credit Photo:Lytton J Musselman Old Dominion University Usage Restrictions Please include the photo credit when using the image. License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.